package master;

/**
 * @author chenyw
 * @date 2022/7/23 17:40
 */
public class ListNode {
    int val;
    ListNode next;
    public ListNode () {

    }
    public ListNode(int val) {
        this.val = val;
    }
    public ListNode(int val, ListNode next) {
        this.val = val;
        this.next = next;
    }
}
